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    <title>Document</title>
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        *{
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        body{
            background-color: #f4f5f9;;
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        .box{
            width: 228px;
            height: 270px;
            background-color: #fff;
            margin: 100px auto;
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        .box img{
            width: 100%;
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        .box h3{
            /* background-color: gold; */
            height: 52px;
            margin-top: 25px;
            padding-left: 25px;
            font-weight: normal;
            font-size: 14px;
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        .box p{
            padding-left: 25px;
            font-size: 12px;
            color: #929292;
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        .box p span{
            color: #f00;
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    </style>
</head>
<body>
    <div class="box">
        <img src="./images/product.png" alt="">
        <h3>Web前端开发</h3>
        <p><span>高级</span> • 1122人在学习</p>
    </div>
</body>
</html>